Tides Today & Tomorrow in St. Augustine (city dock), FL

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in St. Augustine (city dock), FL.
Next low tide : in 2h 55m at 5:54 am (0.0 ft)
Next high tide : 12:11 pm (5.0 ft)
Sunset today : 8:05 pm
Sunrise tomorrow : 6:53 am
Moon phase : Waxing Crescent (18% illuminated)
Tide Station Location : Station #8720576
Common Questions About Tides

St. Augustine (city dock), FL Tides - May 1917

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:384.04:154.110:110.810:410.95:427:01Waxing Gibbous1Tue
2Wed4:324.15:074.310:560.711:330.85:417:02Waxing Gibbous2Wed
3Thu5:224.15:554.611:400.55:407:03Waxing Gibbous3Thu
4Fri6:104.26:394.812:220.612:230.35:407:03Waxing Gibbous4Fri
5Sat6:554.27:224.91:080.41:050.15:397:04Full Moon5Sat
6Sun7:384.38:045.11:520.21:46-0.15:387:05Full Moon6Sun
7Mon8:214.38:465.12:340.02:27-0.25:377:05Full Moon7Mon
8Tue9:064.39:325.13:160.03:10-0.25:367:06Full Moon8Tue
9Wed9:534.310:205.14:010.03:55-0.25:367:07Waning Gibbous9Wed
10Thu10:434.211:105.04:480.04:44-0.15:357:07Waning Gibbous10Thu
11Fri11:364.25:390.15:390.05:347:08Waning Gibbous11Fri
12Sat12:034.912:314.36:350.16:410.25:337:09Third Quarter12Sat
13Sun1:004.81:314.47:340.17:490.35:337:09Third Quarter13Sun
14Mon2:014.72:354.58:340.08:570.35:327:10Third Quarter14Mon
15Tue3:034.63:394.79:31-0.110:020.25:317:10Third Quarter15Tue
16Wed4:054.54:404.910:26-0.311:030.15:317:11Waning Crescent16Wed
17Thu5:044.55:375.211:19-0.45:307:12Waning Crescent17Thu
18Fri6:004.56:305.312:02-0.112:11-0.55:307:12Waning Crescent18Fri
19Sat6:524.47:205.412:58-0.21:01-0.55:297:13New Moon19Sat
20Sun7:404.48:065.41:48-0.21:49-0.55:297:14New Moon20Sun
21Mon8:274.38:515.22:35-0.22:34-0.45:287:14New Moon21Mon
22Tue9:134.29:355.13:20-0.13:17-0.25:287:15New Moon22Tue
23Wed9:584.110:184.94:030.14:000.15:277:15Waxing Crescent23Wed
24Thu10:424.010:594.74:450.34:430.45:277:16Waxing Crescent24Thu
25Fri11:253.911:394.55:270.55:280.65:267:17Waxing Crescent25Fri
26Sat12:083.96:110.66:160.95:267:17Waxing Crescent26Sat
27Sun12:214.312:543.86:570.77:101.05:267:18First Quarter27Sun
28Mon1:064.11:433.97:440.88:081.15:257:18First Quarter28Mon
29Tue1:544.02:354.08:320.79:051.15:257:19First Quarter29Tue
30Wed2:453.93:284.19:180.69:591.05:257:19First Quarter30Wed
31Thu3:393.94:204.310:040.510:520.85:247:20Waxing Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8720576)

Common Questions About St. Augustine (city dock), FL Tides

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What time does the tide turn (slack tide) in St. Augustine (city dock), FL today?

Slack tide in St. Augustine (city dock), FL is approximately 9:02 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in St. Augustine (city dock), FL?

St. Augustine (city dock), FL is currently in a spring phase. Tonight's moon is 18% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are St. Augustine (city dock), FL tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for St. Augustine (city dock), FL?

Tide predictions for St. Augustine (city dock), FL come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for St. Augustine (city dock), FL?

Tide data for St. Augustine (city dock), FL is sourced from NOAA Station #8720576. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8720576.

What is the moon phase in St. Augustine (city dock), FL tonight?

Tonight the moon over St. Augustine (city dock), FL is Waxing Crescent (18% illuminated). This places St. Augustine (city dock), FL in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA